With this update, the app now has an undo tab close button, which allows you to undo closing a tab, should you have done it by accident. The app also now supports fullscreen video with subtitles and HTML5-based controls. Google also notes that Chrome now has support for some multi-window devices, as well as support for casting “some” videos with Chromecast. It’s unclear, however, what devices and videos this update adds support for. Nevertheless, casting videos with Chromecast is a great addition. Most of these features have been in beta for about a month now.